I had a really cool day at work the other day. I work on PCs but I bring in my iBook for iTunes, iChat, occasional non-work browsing , etc.
It's a small company.. only about 5 people. One of my co-workers and I brought in our CD collections so that we could all have some variety in our music selections from day to day.
Well, I was busy ripping CDs in iTunes, so I was coming back to his office every 30-45 minutes or so for 2-3 more CDs.
He's not very computer literate, so he asked me what I was doing, and why I was switching out CDs so fast.
So I showed him my iBook, and iTunes, and he was very interested. Luckily, iTunes/Windows had already been released so I installed it on his machine.
45 minutes later.
He comes into my office and says.. "Wow. This is incredible. I will never buy another PC again. This is the best program I have ever used."
I laughed and told him about the g4 ibooks, and also explained to him that many such things on the Mac are as intuitive and easy to use.
It was nice to see it 'click' with someone the same way it clicked with me some years ago (I'm a switcher).